Chocolate Chip Cookie Bars

Ingredients (10)

• 1 cup all-purpose flour
• 1/2 teaspoon baking powder
• 1/4 teaspoon kosher salt
• 1/8 teaspoon baking soda
• 1 cup light brown sugar
• 4 tablespoons butter
• 1 egg
• 1 teaspoon vanilla extract
• 3/4 cup semi-sweet chocolate chips
• 1/2 cup chopped nuts